- 1 - User`s Manual: Series 350T Model 350T Curr
Contents
1. Accuracy Better than 0 1 of calibrated span or 0 25 mV whichever is greater The error includes the combined effects of transmitter repeatability hysteresis terminal point linearity and adjustment resolution Does not include sensor error Ambient Temperature Range 139F to 1859F 259C to 859C Ambient Temperature Effect Less than 0 01 of output span per OF 0 018 per C over the ambient temperature range for reference test conditions Specification includes the combined effects of zero and span over temperature Bandwidth 3dB at 3 Hz typical Response Time For step input the output reaches 9896 of output span in 300ms typical Series 350T User s Manual DC Current Voltage Noise Rejection Common Mode 120dB at 60 Hz 100 ohm unbalance typical Normal Mode 30dB at 60 Hz 100 ohm source typical RFI Resistance Less than 0 5 of output span with RFI field strengths of up to 10V meter at frequencies of 27 151 and 467 MHz EMI Resistance Less than 0 25 of output span effect with switching solenoids or commutator motors Surge Withstand Capability SWC Input Output terminations rated per ANSI IEEE C37 90 1978 Unit is tested to a standardized test waveform that is representative of surges high frequency transient electrical interference observed in actual installations Construction Printed Circuit Boards Military grade FR 4 epoxy glass circuit board Terminals Compression typ2. oe Lear oP sser 11 4501 296 AF NOTE 1 REFER TO THE CALIBRATION SECTION OF THE MANUAL FOR DETAILED INSTRUCTIONS DISASSEMBLY SEE NOTE 1 ZERO AND SPAN JUMPER SELECTION TE N OUT ZERO JUMPER SPAN JUMPER JUMPER CONFIGURATION SEE NOTE 1 SERIES 350T CURRENT VOLTAGE JUMPER CONFIGURATION lt SEE TABLE 1 EXAMPLE CONFIGURATION ZERO JUMPER IN PIN 5 to 6 SPAN JUMPER IN PIN 1 to 2 E BOARD INTERCONNECTION TABLE 1 ZERO SPAN JUMPER CONFIGURATION ZERO JUMPER MODEL NO ZERO SHUNT BLOCK IS REQUIRED BOARD INTERCONNECTION 3 JUN 93 B B3003 Tav TH 18 DEC 921A Be owe mv oe TE 350T C1 Vx JUMPER CONFIGURATION ssor 4501 297 309 a c 0 xp cs 7d NOTE ALL DIMENSIONS ARE IN INCHES MILLIMETERS 35 T HOUSING DIN RAIL MOUNT Pe INNO LCD ORDRE CENE re RAIL DIN MOUNTING SHOWN THIS SIDE 4 DIN EN 50035 32mm A 1 NOTE PLASTIC ENCLOSURE SNAPS TOGETHER AT SEAMS 0 984 0 45 25 0 11 43 2 WIRE INSERTION CLAMPS 6 PLACES 1 t RAIL DIN MOUNTING SHOWN THIS SIDE 3 DIN EN 50022 35mm RAIL DIN MOUNTING SHOWN HERE DIN EN 50035 32mm T RAIL D
3. Since common mode voltages can exist on signal wiring adequate wire insulation should be used and proper wiring practices followed It is recommended that the output and power wiring be separated from the signal wiring for safety as well as for low noise pickup Series 350T User s Manual DC Current Voltage 1 Power Connect DC power supply per connection diagram refer to Drawing 4501 249 These transmitters operate from DC power supplies only Power supply voltage is not critical and normally should be from 10 0V to 36V DC The supply voltage must not exceed 36 Volts even instantaneously and must be adequate to furnish full scale current or voltage to the load Variations in power supply voltage above the minimum required or load resistance have negligible effect on transmitter accuracy Refer to POWER in the preceding SPECFICATIONS section for current requirements The minus power supply lead and the minus output lead share a common terminal This device includes input current limiting and reverse polarity protection Refer to Drawing 4501 254 for other power supply configurations Ripple and Noise Power supply ripple at 60Hz 120Hz is reduced at the load by the transmitter The ripple at the load will be less than 0 01 of span per volt peak to peak of power supply ripple 2 Output Connect output per connection diagram refer to Drawing 4501 296 Load range is a function of the module s output type refer to Output
4. in the preceding SPECIFICATIONS section The output shares a common with the power supply 3 Grounding The transmitter housing is plastic and does not require an earth ground connection 4 Input Connect input per connection diagram observe proper polarity see label for input type If unit is factory calibrated the calibration label indicates range of input NOTE The input circuit is electrically isolated from the output power circuit allowing the input to operate up to 250V AC or 354V DC off ground on a continuous basis CALIBRATION A TRANSMITTER This section provides information for configuration and calibration If the unit was factory calibrated jumpers have been placed in their proper positions and verification of the calibration can be made per the Adjustment Procedure If the calibration of the unit is to be changed first go to the Shunt Block Configuration Procedure before going to the Transmitter Adjustment Procedure Series 350T User s Manual DC Current Voltage 1 Transmitter Shunt Block Configuration Procedure The Zero and Span adjustment range are configured by jumpers refer to Drawing 4501 297 for details To gain access to the configuration jumpers first remove transmitter from the installation Second remove the circuit boards from the plastic enclosure as described in the Disassembly Procedure below Third configure jumpers shunt blocks as described in the Jumper Configuration procedure
5. Copyright 1993 Acromag Inc Printed in USA Data and specifications subject to change without notice 8500 330 B93H002 Series 350T User s Manual DC Current Voltage INSTRUCTIONS SERIES 350T Current Voltage Input DC Powered Transmitters INTRODUCTION These instructions cover the model types listed in Table 1 below Supplementary sheets are attached for units with special options or features Table 1 A Model Number Format 350T Input Output Mtg Certification Calibration B Typical Model Number 350T C1 Y DIN NCR C Series Input Output Mounting Certification Calib 350T C1 Y DIN NCR Blank Approval C VO V5 Notes Table 1 Unit can be ordered with or without factory calibration if unit is factory calibrated to customer s specifications the model number suffix C will indicate this Any customer specified calibration information will be included on a separate calibration label on the unit Consult the factory for current information on agency e g Canadian Standards Association etc approvals DESCRIPTION These DC powered transmitters condition DC voltage either unipolar or bipolar from 100mV to 100V DC spans and convert the input signal to a process current or voltage output Input circuit isolation is standard Series 350T User s Manual DC Current Voltage The 350T Series are DIN rail mounted transmitters designed to be used as functional components that prov
6. option The maximum load resistance for 20mA compliance is a function of input supply voltage as follows R Load Maximum Minimum VDC supply 2 5V 0 02A At 10 0V DC supply R Load 0 to 375 ohms At 12 5V DC supply R Load 0 to 500 ohms At 15 0V DC supply R Load 0 to 625 ohms At 24 0V DC supply R Load 0 to 1075 ohms Output Limiting Voltage units 15046 of full scale output nominal Current units 12596 of full scale output nominal Output Ripple Less than 0 1 of the maximum output span Power An external DC power supply is required between the output P and terminals Transmitter current is for rated supply inputs full scale output and no load on voltage output units Diode on transmitter provides reverse polarity protection CAUTION Do not exceed 36V DC peak to avoid damage to the transmitter A Process Current Output 10 0V to 36 0V DC 30mA 35mA at current limit B Voltage Output VO 12 5V to 36 0V DC 9mA maximum C Voltage Output V5 10 0V to 36 0V DC 9mA maximum Power Supply Effect DC Volts less than 0 001 of output span per volt DC for rated power supply variations 60 120 Hz ripple less than 0 01 of span per volt peak to peak of power supply ripple Reference Test Conditions Input 1 10V DC with a 100 ohm resistive source Output Y units 4 20mA DC 500 ohm load Output Vx units 0 10V DC into 10K ohms or greater Ambient 779F 25 C 15V DC supply
7. Acromag User s Manual Series 350T Model 350T Current Voltage Input DC Powered Transmitters Table Contents NER EC Page IntrOdUetiOn c zz eee eee e aede 2 Description iecit accedet oo 2 EE 3 ICASE ETET O 25423926242 e e uen c EA Lu E EE d EE 6 Cali brat OM EE 8 General Maintenance ccccccccccccccccceccesecececeeeeecsseuscscssesesssesesssscsesesesececececeseseseceeees 11 List of Drawings Electrical Connections C1 Vx Input No 4501 2960 12 Configuration Jumper Location C1 Vx Input No 4501 2297 13 Dimensions DIN Rail Mounting No 4501252 14 Electrical Connections Power Supply Configurations No 4501 254 15 It is very important for the user to consider the possible adverse effects of power wiring component sensor or software failures in designing any type of control or monitoring system This is especially important where economic property loss or human life is involved It is important that the user employ satisfactory overall system design It is agreed between the Buyer and Acromag that this is the Buyer s responsibility Acromag Inc Tel 248 624 1541 30765 Wixom Road P O Box 437 FAX 248 624 9234 Wixom Michigan 48393 7037 USA
8. IN MOUNTING SHOWN HERE xh DIN EN 50022 35mm 79 0 1 55 39 4 SCREWDRIVER SLOT FOR 288 REMOVAL FROM RAIL NOTE ADJACENT UNITS CAN BE MOUNTED 73 41 ON 1 0 INCH 25 4mm CENTERS 3 35 5 85 09 3 55 90 17 ENCLOSURE DIMENSIONS FOR DIN RAIL MOUNTING E Avgnes o e eE E NOTE ALL TRANSMITTERS IN THIS CONFIGURATION SHARE OUTPUT A COMMON CONNECTION WITH THE POWER SUPPLY L vou 5 C CURRENT Y NOTE THE COMBINATION OF A SERIES 350T TRANSMITTER AND AN AC POWERED SUPPLY PROVIDES THREE WAY ISOLATION 2 SPAN demo INPUT OUTPUT AND POWER OUTPUT DC SUPPLY 12 5 to 36V DC POWER F GROUND CONSULT FACTORY INPUT INPU FOR SUPPLY OPTIONS 115V AC 230V INPUT INPUT SERIES 350T SERIES 350T SERIES 350T SERIES 350T SERIES 350T SERIES 350T TRANSMITTER TRANSMITTER TRANSMITTER TRANSMITTER TRANSMITTER TRANSMITTER w ac Lo c NOTE INPUT GROUND G TERMINAL IS NOT CONNECTED INTERNALLY SERIES 350T SERIES 350T SINGLE TRANSMITTER TO POWER MULTI TRANSMITTER POWER SUPPLY CONNECTIONS SUPPLY CONNECTIONS 1 OPTION Ems 2 OPTION POWER SUPPLY CONFIGURATIONS ELECTRICAL CONNECTIONS 191 224591 254
9. ace A transmitter can be mounted to either the T or G Rail Installation of the transmitter to the rail depends on the type of DIN rail used Units can be mounted side by side on 1 0 inch centers if required Rail 35mm Type EN50022 To attach a transmitter to this style of DIN rail angle the top of the unit towards the rail and locate the top groove of the adapter over the upper lip of the rail Firmly push the unit towards the rail until it snaps solidly into place To remove a transmitter insert a screwdriver into the lower arm of the connector and pull downwards while applying outward pressure to the bottom of the unit G Rail 32mm Type EN50035 To attach a transmitter to this style of DIN rail angle the unit so that the upper groove of the adapter hooks under the top lip of the rail Firmly push the unit towards the rail until it snaps solidly into place To remove a transmitter pull the lower part of the unit outwards until it releases from the rail lift unit from rail Electrical Connections Regardless of the mounting configuration employed the electrical connections are basically identical The wire size used to connect the unit to the control system is not critical All terminal strips can accommodate wire from 14 26 AWG Strip back the insulation 1 4 inch on each lead before installing it into the terminal block Input wiring may be either shielded or unshielded twisted pair Output wires should be twisted pair
10. are properly aligned and carefully push the boards back together Jumper Configuration Shunt Blocks Shunt blocks are provided to accommodate in field configuration changes In case of misplacement additional shunt blocks may be ordered from the factory When ordering additional shunt blocks refer to Acromag Part Number 1004 332 Series 350T User s Manual DC Current Voltage 1 1 Zero Span Range The Zero and Span shunt blocks should initially be placed in their default position typically IN for each case see Drawing 4501 297 During the process of Calibration the need to change these jumper positions will be determined 2 Important Mark the Transmitter s Configuration on the calibration label located on the enclosure Example IN 0 to 1 0V DC Jumper Configuration Example Configure internal jumpers as follows A Zero and Span Range Zero amp Span Jumpers both IN 2 Transmitter Adjustment Procedure Connect transmitter as shown in the connection diagram Drawing 4501 296 For best results the input signal source should be adjustable over the entire input range of the unit settable to an accuracy of 0 1 or better and have a source resistance of 100 ohms or less The power supply voltage must be between 8 and 36 Volts DC at the terminals of the transmitter The output voltage must be measured to 0 1 accuracy or better for proper results The Zero and Span adjustments are accessible on the fron
11. ated on the front panel Connectors are screw clamp type and accept wire size up to 14 AWG SPECIFICATIONS Function This family of isolated DC Voltage powered transmitters condition either a DC current or voltage signal provide input circuit isolation and convert the input signal to a process current or voltage output The output and DC power share a common terminal 3 Wire connection Wide range zero and span adjustments utilize 22 turn potentiometers which are accessible from the front of the unit The transmitter is DIN rail mounted MODEL SERIES 350T Color coded with a white label Input DC Current and Voltage Input span and zero ranges are adjustable as specified below except for special ranges which are factory calibrated per customer specifications Both the Span and Zero adjustment capability are covered in two ranges and are configured by internal jumpers on the circuit board Series 350T User s Manual DC Current Voltage V6 DC Current Span 4 0 to 20 0mA DC Zero 0 0 to 16 0mA DC Maximum full scale of 20 0mA DC Input load is 10 ohms DC Voltage Span 0 1 to 1 0V DC Zero suppression from 0 to 25 percent of input span Input impedance is 40M ohms at 0 4V span typical input current 10nA typical DC Voltage Span 1 0 to 10 0V DC Zero suppression from 0 to 25 percent of input span Input impedance is 100K ohms typical DC Voltage Span 10 0 to 100 0V DC Zero suppression from 0
12. below NOTE Calibration per the Adjustment Procedure should be performed before the circuit boards are reassembled within the plastic enclosure Disassembly Procedure for the 350T Plastic Housing The plastic housing has no screws it snaps together A flat head screwdriver Acromag 5021 216 or equivalent is needed to pry the housing apart as described in the following steps CAUTION Do not push the screwdriver blade into the housing more than approximately 0 1 inches while prying it apart Handling of the printed circuit boards should only be done at a static free workstation otherwise damage to the electronics could result 1 To begin disassembly refer to Drawing 4501 297 place the screwdriver at point A left side of the transmitter While pressing the blade into the seam use a twisting motion to separate the sides slightly Repeat this operation at point B 2 Now that the two pieces have been partially separated use the screwdriver blade to work the left side of the package loose by working around the transmitter and carefully prying the sides further apart Repeat this action until it is easy to remove the left side from the plastic pins holding the pieces together 3 Repeat this operation for the right side starting at points C and D CAUTION If the two pc boards become separated while taking the package apart re align the boards making sure that the two headers pins and sockets at locations E and F
13. e wire size 14 AWG maximum Case Self extinguishing NYLON Type 6 6 polyamide thermoplastic UL94 V 2 color black General Purpose NEMA Type 1 enclosure Printed Circuit Board Coating Fungus resistant acrylic conformal coat Mounting Position Position insensitive MOUNTING DIN General Purpose Housing DIN Rail Mount G amp T rails G Rail 32mm Type EN50035 T Rail 35mm Type EN50022 Refer to Drawing 4501 252 for outline and clearance dimensions Shipping Weight 1 pound 0 45 Kg packed CERTIFICATION Consult the factory for current information on the availability of agency e g Canadian Standards Association Factory Mutual etc approvals NCR No Certification Required INSTALLATION The transmitter is packaged in a general purpose type of enclosure Use an auxiliary enclosure to protect against unfavorable environments and locations Maximum operating ambient temperatures should be within 13 to 1859F 25 to 859C for satisfactory performance If the unit is factory calibrated it is ready for installation Connect as shown in the connection diagram of Drawing 4501 296 If the unit is not factory calibrated refer to the CALIBRATION section Series 350T User s Manual DC Current Voltage Mounting Mount transmitter assembly refer to Drawing 4501 252 for mounting and clearance dimensions DIN Rail Mounting Using suitable fastening hardware secure the DIN rail to the designated mounting surf
14. ide the user with a modular approach to the varied applications in the field The Series 350T complements the Acromag Series 250T two wire transmitter line providing the same input conditioning for three wire applications That is Series 350T transmitters require a separate power supply connection while the output signal and DC power share a common lead The small package size low power requirements and wide supply range offers maximum flexibility to the system designer As a three wired DC powered device it can also be used in critical applications that require the use of redundant supplies The Series 350T includes reverse polarity protection current limiting and operates from a single 10V to 36V DC supply In applications requiring only a single transmitter the 350T can use available DC power or it can be wired to an optional Series 35PS power supply module The Series 35PS power supply module receives it s power from either 115V AC or 230V AC Applications requiring multiple transmitters at a single location can more efficiently share a single DC supply The modular approach of this design and companion Acromag flat pack modules allows additional transmitters input modules isolators and alarms to be easily integrated as required See Drawing 4501 249 for a simplified Series 350T schematic Input wiring is inserted in the bottom of the unit while output and power wiring is inserted at the top of the unit Screws to secure the wiring are loc
15. ne up the right side of the housing with the assembly and carefully but firmly press the pieces together GENERAL MAINTENANCE The transmitter contains solid state components and requires no maintenance except for periodic cleaning and calibration verification When a failure is suspected a convenient method for identifying a faulty transmitter is to exchange it with a known good unit It is highly recommended that a non functioning transmitter be returned to Acromag for repair since Acromag makes use of tested and burned in parts and in some cases parts that have been selected for characteristics beyond that specified by the manufacturer Further Acromag has automated test equipment that thoroughly checks the performance of each transmitter REVERSE POLARITY bc PROTECTION POWER SUPPLY INPUT ZERO ADJUST ADJUST SIGNAL OUTPUT VOLTAGE V V5 AMPLIFIER AMPLIFIER CURRENT OUTPUT SIGNAL ISOLATION TRANSMITTER GROUND ADJUSTMENTS OPTIONAL LINEARIZER TC UNITS INTERNAL TRANSMITTER CONFIGURATION JUMPERS SEE DRAWING 4501 297 SUPPLY ISOLATION SERIES 35 T SIMPLIFIED SCHEMATIC VOLTAGE OR CURRENT INPUT mV Volt T SERIES 350T CURRENT VOLTAGE INPUT ELECTRICAL CONNECTIONS L L t n C PROCESS CURRENT MILLIVOLT VOLT ics feet INPUT CONNECTIONS fe et
16. nsmitter PC Board assembly back into its case as described in the assembly procedure below Transmitter Calibration Example 2 V4 V5 and V6 models are similar MODEL 350T V4 Y DIN NCR Input 0 4 to 0 4V DC Output 4 20mA DC 1 PA Set the input source to 0 0000V DC Adjust the Zero Z pot until the output reads 12 000mA DC Set the input source to 0 4000V DC Adjust the Span S pot until the output reads 4 000mA DC Set the input source to 0 4000V DC Take note of how far the output is from 20 000mA DC Adjust the Span S pot to reduce the difference from 20 000mA DC by half Adjust the Zero Z pot until the output reads 20 000mA DC Repeat steps 2 and 3 above until the readings converge The instrument is now calibrated Several mid point values should also be checked to verify proper operation of the transmitter After the above calibration procedure is complete install the transmitter PC Board assembly back into its case as described in the assembly procedure below Assembly Procedure for the 350T Plastic Housing NOTE The Model Serial Number label is attached to the left plastic side l Refer to Drawing 4501 297 and line up the left plastic side with the board and terminal assembly Carefully but firmly press the pieces together Before installing the right side place the mounting bracket unique to the mounting type you have around the pins at the back of the housing Li
17. t panel of the transmitter see Drawing 4501 296 for their location The screwdriver blade used to adjust the potentiometers should not be more than 0 1 inch 2 54mm wide For optimum performance the span and zero capability of the unit are covered in two ranges which are programmed by internal jumpers on the circuit board The Span S and Zero Z jumpers change the range of adjustment of the span and zero potentiometers If during calibration the zero potentiometer range is found to be inadequate move the Zero Shunt from IN Default Position to OUT If during calibration the span potentiometer range is found to be inadequate move the Span Shunt from IN Default Position to OUT Only move the Shunt Jumpers when it is required For Shunt Block location refer to Drawing 4501 297 Transmitter Calibration Example 1 C1 V1 V2 and V3 models are similar MODEL 350T V1 Y DIN NCR Input 0 to 1 0V DC Output 4 20mA DC 1 Set the input source to 0 000V DC Adjust the Zero Z pot until the output reads 4 000mA DC 2 Set the input source to 1 000V DC Adjust the Span S pot until the output reads 20 000mA DC 3 Repeat steps 1 and 2 above until the readings converge The instrument is now calibrated Several mid point values should also be checked to verify proper operation of the transmitter Series 350T User s Manual DC Current Voltage 4 After the above calibration procedure is complete install the tra
18. to 25 percent of input span Input impedance is 500K ohms typical DC Voltage bipolar input Span 0 1 to 1 0V DC Signal is assumed to be symmetrical around 0 volts Input impedance is 80M ohms at 0 8V span typical input current 10nA typical DC Voltage bipolar input Span 1 0 to 10 0V DC Signal is assumed to symmetrical around 0 volts Input impedance is 100K ohms typical DC Voltage bipolar input Span 10 0 to 100 0V DC Signal is assumed to be symmetrical around 0 volts Input impedance is 500K ohms typical Input Impedance Per input type see Input description above Isolation The input circuit is electrically isolated from the output and power circuits allowing the input to operate at up to 250V AC or 354V DC off ground on a continuous basis will withstand 1500V AC dielectric strength test for one minute without breakdown This complies with test requirements outlined in ANSI ISA S82 01 1988 for the voltage rating specified OUTPUT Process Current or Voltage output The output shares a common with the power supply Voltage outputs are designed to provide true voltage output with zero volts included and to be stable with capacitive loads Y 4 to 20mA DC see Load Resistance Range Equation below V0 0 to 10V DC into 10 000 ohms or greater V5 5V DC into 5 000 ohms or greater Series 350T User s Manual DC Current Voltage Load Resistance Range Equation Y output
Download Pdf Manuals
Related Search